CN112593876A - Transfer arm safety anti-falling device of pull-up power catwalk - Google Patents

Abstract

The application discloses a transfer arm safety anti-falling device of a pull-up power catwalk, which relates to the field of petroleum drilling and production, and adopts the technical scheme that the device comprises a stop block assembly arranged on a catwalk bracket, a trigger mechanism driving the stop block assembly to move and a connecting block connecting the trigger mechanism and the stop block assembly; the stop block assembly comprises a double-lug-plate fixing seat fixed on the back of the catwalk support and a stop block hinged with the double-lug-plate fixing seat, and the stop block is fixedly connected with the connecting block; the triggering mechanism comprises a double-lug-seat cross beam fixed on the back of the catwalk support, a triggering rod hinged with the double-lug-seat cross beam, a triggering steel wire rope, a pulley block and a triggering frame, wherein one end of the triggering steel wire rope is fixedly connected with the triggering rod, the other end of the triggering steel wire rope is fixedly connected with the connecting block, the pulley block is fixed on the catwalk support and used for steering the triggering steel wire rope, and the triggering frame. This application has the effect that increases removal wall lift in-process security.

Description

Transfer arm safety anti-falling device of pull-up power catwalk

Technical Field

The application relates to the field of oil drilling and production, in particular to a safe falling-prevention device for a transfer arm of a pull-up type power catwalk.

Background

At present, a steel wire rope lifting type power catwalk matched with a land drilling machine is used for realizing automatic conveying work of a drill string from the ground to a drill floor, and the lifting and lowering actions of a transfer arm are driven by a steel wire rope wound on a winch drum through rotation of a winch positioned on the back of a ramp. The power catwalk uses for a long time and can lead to wire rope's wearing and tearing and fatigue ageing, the actual scene has special patroller to carry out inspection work, accomplish wire rope's change work when necessary, but patrol staff's carelessness or other reasons sometimes, can lead to the wire rope that has reached the change standard to continue to use, probably other unexpected reasons again, can lead to wire rope to take place extreme event such as fracture and take place, the wire rope fracture can lead to carrying the transfer arm that has the drilling string to fall in the twinkling of an eye, it is located catwalk ramp higher position apart from ground to transfer the arm when the wire rope fracture, can lead to the serious damage of equipment, can lead to the emergence of casualties incident even, the security can't be ensured.

Disclosure of Invention

In order to increase the security that removes the wall lift in-process, this application provides a transfer arm safety anti-falling device who draws lift formula power catwalk.

The subject name provided by the application adopts the following technical scheme: a transfer arm safety anti-falling device of a pull-up type power catwalk comprises a stop block assembly arranged on a catwalk support, a trigger mechanism driving the stop block assembly to move and a connecting block connecting the trigger mechanism and the stop block assembly; the stop block assembly comprises a double-lug-plate fixing seat fixed on the back of the catwalk support and a stop block hinged with the double-lug-plate fixing seat, and the stop block is fixedly connected with the connecting block; the triggering mechanism comprises a double-lug-seat cross beam fixed on the back of the catwalk support, a triggering rod hinged with the double-lug-seat cross beam, a triggering steel wire rope, a pulley block and a triggering frame, wherein one end of the triggering steel wire rope is fixedly connected with the triggering rod, the other end of the triggering steel wire rope is fixedly connected with the connecting block, the pulley block is fixed on the catwalk support and used for steering the triggering steel wire rope, and the triggering frame.

Through adopting above-mentioned technical scheme, the wire rope that rises passes from triggering the frame, carry on spacingly to triggering the frame, after the wire rope that rises breaks off, trigger the frame and broken away from the spacing back that rises the wire rope, trigger the frame and fall under the drive of self gravity, the pulling triggers wire rope to drive the dog motion, drive the dog and pop out from the V-arrangement groove, carry out the screens to the arm of transferring of landing in the V-arrangement inslot, prevent to transfer the continuation landing of arm, increase the security that removes the wall lift in-process.

Optionally: the stop block assemblies are in multiple groups, connecting steel wire ropes are arranged between the stop block assemblies, and the connecting steel wire ropes are fixedly connected with the two adjacent stop blocks.

By adopting the technical scheme, the multiple groups of clamping blocks can be arranged at multiple positions of the V-shaped groove and are linked through the connecting steel wire rope; when an accident happens, the transfer arm slides down and is abutted to the stop block which is closest to the lower part of the transfer arm, the sliding distance of the moving wall can be shortened, and when one stop block breaks down (such as breaks), the rest stop blocks can play a role in safety, and the use stability of the limiting assembly is improved.

Optionally: the stop block is fixed with a screw buckle, and two ends of the connecting steel wire rope are fixedly connected with the screw buckle.

Through adopting above-mentioned technical scheme, can change wire rope's length through rotatory turnbuckle to guarantee under the normal operating condition that the dog is in V-arrangement inslot and do not take place to interfere the motion of transferring the arm.

Optionally: the number of the trigger mechanisms is multiple groups, and is the same as that of the lifting steel wire ropes.

Through adopting above-mentioned technical scheme, every draws and rises wire rope and a set of trigger mechanism correspondingly, when one of them draws and rises wire rope fracture, just can trigger a set of trigger mechanism, drives the dog and pops out, further increases the security that transfers the arm and go up and down.

Optionally: the upper portion of the trigger frame is rotatably connected with a front roller and a rear roller, and a gap exists between the front roller and the rear roller.

Through adopting above-mentioned technical scheme, the gyro wheel replaces to trigger the frame and draws high wire rope butt, can reduce the wearing and tearing to drawing high wire rope.

Optionally: and an unlocking steel wire rope is fixed at one end of the trigger frame, which is far away from the trigger rod.

By adopting the technical scheme, after the transfer arm is adjusted by the crane, the trigger mechanism is lifted to a normal working state by the unlocking steel wire rope so as to achieve the purpose of braking unlocking, the unlocking is rapid and convenient, and the subsequent replacement of the pull-up steel wire rope is convenient.

Optionally: one end of the trigger frame far away from the trigger rod is fixed with a balancing weight

Through adopting above-mentioned technical scheme, the balancing weight can increase the gravity that triggers the frame, can increase the pulling force to triggering wire rope after drawing to rise the wire rope fracture for the dog is more stable pops out the V-arrangement inslot, triggers wire rope's pulling force through the increase, increases the stability that the dog popped out.

Optionally: the conveying device also comprises a safety device arranged on the conveying arm and a ratchet bar arranged on the side wall of the V-shaped groove; the safety device comprises a supporting block connected to the transfer arm, a rotating shaft rotatably connected with one end of the supporting block, a connecting plate rotatably connected with the rotating shaft, a butting wheel fixed at one end of the connecting plate far away from the supporting block, a clamping block fixed at one end of the butting wheel far away from the connecting plate, and an elastic element driving the connecting plate to rotate towards the direction close to the V-shaped groove.

Through adopting above-mentioned technical scheme, after pulling up wire rope and breaking, transfer the arm and can produce the trend along V-arrangement groove gliding downwards, because trigger mechanism drives the dog and pops out, the dog can block transferring the arm. However, when the steel wire rope is broken, if the distance between the transfer arm and the stop block which is the closest distance below the transfer arm is far, large kinetic energy is generated in the process of sliding down the transfer arm, and the transfer arm and the stop block collide violently at the moment, so that the transfer arm and the stop block are easily damaged, and the stop block may lose the blocking effect; therefore, the added safety device can drive the clamping block to be matched with the ratchet bar in real time when the pull-up steel wire rope is broken, the sliding of the transfer arm is blocked, the kinetic energy of the downward sliding of the transfer arm is reduced, the severe collision between the transfer arm and the clamping block is reduced, and the further safety effect is achieved.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the pulling-up steel wire rope penetrates through the trigger frame to limit the trigger frame, when the pulling-up steel wire rope is broken, the trigger frame falls under the driving of self gravity, the trigger steel wire rope is pulled to drive the stop block to move, the stop block is driven to pop out of the V-shaped groove, the sliding transfer arm is clamped in the V-shaped groove, the transfer arm is prevented from continuously sliding, and the safety of the moving wall in the lifting process is improved;

2. the length of the steel wire rope can be changed by rotating the turnbuckle, so that the stop block is positioned in the V-shaped groove under the normal working state and does not interfere with the movement of the transfer arm;

3. the safety device can drive the clamping block to be matched with the ratchet bar in real time when the steel wire rope is pulled to be broken, the sliding of the transfer arm is blocked, the kinetic energy of the downward sliding of the transfer arm is reduced, the severe collision between the transfer arm and the clamping block is reduced, and a further safety effect is achieved.

Drawings

FIG. 1 is a schematic view of an embodiment of an installation site;

FIG. 2 is a schematic structural view showing the back of the catwalk support;

FIG. 3 is an enlarged view of portion A of FIG. 1;

FIG. 4 is a schematic view of the entire structure of the embodiment;

FIG. 5 is an enlarged view of the portion B of FIG. 4;

FIG. 6 is a schematic structural diagram illustrating an operating state of the embodiment;

FIG. 7 is a schematic structural diagram according to a second embodiment;

FIG. 8 is a schematic structural view of a safety device;

FIG. 9 is an enlarged view of section C of FIG. 8;

fig. 10 is a schematic structural diagram showing a latch.

Description of reference numerals: 1. a catwalk support; 11. a V-shaped groove; 12. a transfer arm; 121. a transfer plate; 13. a winch drum; 14. pulling up the steel wire rope; 15. a fixed pulley; 2. a stop block assembly; 21. a fixed seat; 22. a stopper; 23. a turnbuckle; 3. a wire rope; 4. a trigger mechanism; 41. a double lug seat beam; 42. a trigger frame; 421. a front roller; 422. a rear roller; 423. a balancing weight; 43. triggering a steel wire rope; 44. a pulley block; 45. a trigger lever; 5. connecting blocks; 6. unlocking the steel wire rope; 7. a safety device; 71. a support block; 711. a first abutment block; 712. a fixing plate; 713. a fixed block; 72. a rotating shaft; 721. shifting blocks; 73. a connecting plate; 731. a second abutment block; 792. a slot; 74. a torsion spring; 75. a connecting rod; 76. a gravity block; 77. a butting wheel; 78. a clamping block; 79. a slider; 791. a matching block; 792. a brake pad; 793. a spring; 8. a ratchet bar.

Detailed Description

The present application is described in further detail below with reference to the attached figures.

Example (b): referring to fig. 1 and 3, the pull-up type power catwalk comprises a catwalk support 1, a V-shaped groove 11 fixed on the catwalk support 1, a transfer arm 12 lifting in the V-shaped groove 11, a winch drum 13 fixed at the bottom end of the back of the catwalk support 1, a pull-up steel wire rope 14 with one end fixedly connected with the winch drum 13 and the other end fixedly connected with the transfer arm 12, and a fixed pulley 15 rotatably connected to the catwalk support 1.

Referring to fig. 2, two pull-up cables 14 are provided and arranged in parallel. Winch cylinder 13 sets up in the bottom of catwalk support 1, and fixed pulley 15 sets up on the top of catwalk support 1. The lifting wire rope 14 is fixedly connected with the transferring arm 12 from the winch roller 13 to the other end of the fixed pulley 15, and the transferring arm 12 is driven to ascend and descend in the V-shaped groove 11 by winding and unwinding the winch roller 13.

Referring to fig. 4, the transfer arm safety anti-falling device of the pull-up power catwalk comprises a plurality of sets of block assemblies 2 (three sets in the figure, but not limited to three sets) arranged on a catwalk support 1, a connecting steel wire rope 3 for connecting the plurality of sets of block assemblies 2, a trigger mechanism 4 for driving the block assemblies 2 to move, a connecting block 5 for connecting the trigger mechanism 4 and the block assemblies 2, and an unlocking steel wire rope 6 connected with the trigger mechanism 4.

The stop block component 2 comprises a double-lug-plate fixing seat 21 fixed on the back surface of the catwalk support 1, a stop block 22 hinged with the double-lug-plate fixing seat 21 and a spiral buckle 23 fixedly connected to one side, far away from the catwalk support 1, of the stop block 22. The connecting block 5 is fixedly connected with a stop 22 of the blocking assembly 2 close to the connecting block 5.

The V-shaped groove 11 is provided with a through hole for the stop block 22 to pass through, and after the trigger mechanism 4 drives the stop block 22 to move, the stop block 22 can pass through the through hole formed in the V-shaped groove 11. Two ends of the connecting steel wire rope 3 are respectively fixedly connected with the turnbuckles 23 of two adjacent stop block assemblies 22, and the length of the connecting steel wire rope 3 is adjusted by the turnbuckles to ensure that the stop blocks 22 are positioned in the V-shaped grooves 11 under the normal working state and do not interfere with the movement of the transfer arm 12.

Referring to fig. 4 and 5, the triggering mechanism 4 includes a double-lug-seat beam 41 fixed on the back of the catwalk support 1, a triggering rod 45 hinged to the double-lug-seat beam 41, a triggering steel wire rope 43 with one end fixedly connected to the triggering rod 45 and the other end fixedly connected to the connecting block 5, a pulley block 44 fixed on the catwalk support 1, and a triggering frame 42 fixed on the top end of the triggering rod 45. The number of the trigger rods 45 and the trigger frames 42 is the same as that of the lifting steel wire ropes 14, and the two groups are formed.

One end of the trigger frame 42 close to the trigger rod 45 is rotatably connected with a rear roller 422, and one end of the trigger frame 42 far from the trigger rod 45 is rotatably connected with a front roller 421; the front roller 421 and the rear roller 422 are both made of nylon material, and a gap is reserved between the front roller 421 and the rear roller 422 for the pull-up steel wire rope 14 to pass through; the steel wire rope 14 is pulled to abut against the front roller 421 or the rear roller 422, and the position of the trigger frame 42 is limited by pulling the steel wire rope 14, so that the position of the trigger frame 42 is kept stable. A counterweight 423 is further fixed on the trigger frame 42, and the counterweight 423 is located on a side of the rear roller 422 away from the front roller 421. The unlocking steel wire 6 is fixed at one end of the trigger frame 42 far away from the trigger rod 45.

With reference to fig. 6, the implementation principle of the safety fall-prevention device for the transfer arm 12 of the pull-up power catwalk in the embodiment of the present application is as follows: if any one of the pulling-up steel wire ropes 14 is broken due to an emergency, after the trigger frame 42 is separated from the limiting position of the pulling-up steel wire rope 14, the trigger frame 42 falls under the driving of the balancing weight 423 and the self gravity, the trigger steel wire rope 43 is pulled, the stop block 22 is driven to move, and the stop block 22 is driven to pop out of the V-shaped groove 11. Because the plurality of groups of the stop block assemblies 2 are connected through the connecting steel wire rope 3, after the stop block 22 of the first group of the stop block assemblies 2 is popped out, the rest stop blocks 22 can quickly react to pop out of the V-shaped groove 11; at the position of the three stop blocks 22, the nylon block fixing structure of the falling transfer arm 12 can be clamped randomly and rapidly, and the function of timely braking is achieved.

The drill rod transfer arm 12 needs to be returned to the catwalk base for replacing the pull-up steel wire rope 14 subsequently, at this time, after the transfer arm 12 is adjusted by the crane, the trigger mechanism 4 is lifted to a normal working state by the unlocking steel wire rope 6, so that the purpose of braking unlocking is achieved, the unlocking is rapid and convenient, and the pull-up steel wire rope 14 is convenient to replace subsequently.

Example two: referring to fig. 7 and 8, the difference between the first embodiment and the second embodiment is that a safety device 7 is provided on the V-shaped groove 11, and a ratchet bar 8 engaged with the safety device 7 is provided on the transferring arm 12. One end of the transfer arm 12 near the V-shaped groove 11 is hinged with a transfer plate 121, and a transfer wheel abutting against the V-shaped groove 11 is rotatably connected to the transfer plate 121. The safety device 7 is mounted on the transfer plate 121. The ratchet bar 8 is fixed on the side wall of the V-shaped groove 11 by bolts. The number of the safety devices 7 and the ratchet bars 8 is two, and the safety devices and the ratchet bars correspond to the two pull-up steel wire ropes 14 respectively.

Referring to fig. 8 and 9, the safety device 7 includes a supporting block 71 connected to the moving plate 121, a fixing plate 712 vertically fixed to a side of the supporting block 71 away from the V-shaped groove 11, a fixing block 713 fixed to the fixing plate 712, a rotating shaft 72 rotatably connected to the fixing block 713, a connecting plate 73 rotatably connected to the rotating shaft 72, a torsion spring 74 sleeved on the rotating shaft 72, a connecting rod 75 disposed at an end of the connecting plate 73 away from the fixing block 713, a weight block 76 fixed to an end of the connecting rod 75 away from the connecting plate 73, an abutment wheel 77 rotatably connected to a side of the connecting plate 73, a latch 78 fixed to a side of the connecting plate 73 close to the ratchet 8, and a slider 79 slidably connected. The supporting block 71 and the transfer plate 121 are connected and fixed by bolts and nuts penetrating through the two, so that the safety device 7 is mounted.

A first abutting block 711 is fixed on the fixing block 713, and a second abutting block 731 is fixed on the connecting plate 73; both ends of the torsion spring 74 abut against the first abutting block 711 and the second abutting block 731, respectively, and drive the connecting plate 73 to rotate in a direction approaching the V-shaped groove 11.

The abutment wheel 77 is a sheave, and the recess of the abutment wheel 77 abuts against the hoist rope 14. The end of the connecting plate 73 remote from the fixing block 713 is fixed with a slot 732, and the slot 732 is used for inserting the connecting rod 75. The bolt capable of abutting against the connecting rod 75 is screwed to the side wall of the slot 732, and after the bolt is screwed tightly, the bolt can abut against the connecting rod 75 tightly, so that the resistance of the connecting rod 75 sliding out is increased, and the connecting rod 75 inserted into the slot 732 is fixed.

A shifting block 721 is fixed at one end of the rotating shaft 72 close to the sliding block 79. An engagement piece 791 that can abut against the dial piece 721 is fixed to one end of the slider 79 near the rotating shaft 72. A brake shoe 792 is fixed to an end of the slider 79 remote from the shaft 72, and the brake shoe 792 can abut against the transfer wheel on the transfer plate 121 to brake the transfer wheel. The slider 79 is sleeved with a spring 793, and two ends of the spring 793 are respectively fixedly connected with the fixing plate 712 and the brake block 792, and drive the brake block 792 to move towards the direction close to the fixing plate 712.

The implementation principle of the embodiment of the application is as follows: when the equipment normally works, the two ends of the pulling-up steel wire rope 14 are in a tensioning state under the tension of the transfer arm 12 and the winch roller 13, the abutting wheels 77 abut against the pulling-up steel wire rope 14, the torsion springs 74 are in a compressed state at the moment, the connecting plate 73 is driven to tend to rotate towards the direction close to the V-shaped groove 11, the pulling-up steel wire rope 14 plays a limiting role at the moment, and the connecting plate 73 cannot rotate towards the direction close to the V-shaped groove 11. In this state, the latch 78 is located above the ratchet bar 8, and the two are separated.

After the tensile steel wire rope 14 is broken, the two ends of the broken tensile steel wire rope 14 cannot meet the condition of receiving tensile force at the same time, and are in a relaxed state, at this time, the tensile steel wire rope 14 cannot continue to play a limiting role, the connecting plate 73 starts to rotate towards the direction close to the V-shaped groove 11 until the clamping block 78 abuts against the ratchet bar 8, and meanwhile, the brake block 792 abuts against the transfer wheel on the transfer plate 121. The latch 78 abuts against the ratchet on the ratchet bar 8 to block the downward sliding tendency of the latch 78 along the V-shaped groove 11, thereby blocking the downward sliding tendency of the support block 71 and the transfer plate 121, further blocking the downward sliding tendency of the transfer arm 12 along the V-shaped groove 11, and blocking the downward sliding of the transfer arm 12 when the pull-up wire rope 14 is broken, thereby playing a role of safety.

The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a transfer arm safety anti-falling device of formula of drawing rising power catwalk which characterized in that: the device comprises a stop block component (2) arranged on a catwalk support (1), a trigger mechanism (4) driving the stop block component (2) to move and a connecting block (5) connecting the trigger mechanism (4) and the stop block component (2); the stop block assembly (2) comprises a double-lug plate fixing seat (21) fixed on the back of the catwalk support (1) and a stop block (22) hinged with the double-lug plate fixing seat (21), and the stop block (22) is fixedly connected with the connecting block (5); the triggering mechanism (4) comprises a double-lug-seat cross beam (41) fixed on the back of the catwalk support (1), a triggering rod (45) hinged with the double-lug-seat cross beam (41), a triggering steel wire rope (43) with one end fixedly connected with the triggering rod (45) and the other end fixedly connected with the connecting block (5), a pulley block (44) fixed on the catwalk support (1) and used for the triggering steel wire rope (43) to turn, and a triggering frame (42) fixed on the top end of the triggering rod (45).

2. The transfer arm safety fall arrest device for a pull-up power catwalk according to claim 1, characterized in that: the steel wire rope connecting structure is characterized in that the stop block assemblies (2) are in multiple groups, connecting steel wire ropes (3) are arranged between the stop block assemblies (2), and the connecting steel wire ropes (3) are fixedly connected with two adjacent stop blocks (22).

3. The transfer arm safety fall arrest device for a pull-up power catwalk according to claim 2, characterized in that: a turnbuckle (3) is fixed on the stop block (22), and two ends of the connecting steel wire rope (3) are fixedly connected with the turnbuckle (3).

4. The transfer arm safety fall arrest device for a pull-up power catwalk according to claim 1, characterized in that: the number of the trigger mechanisms (4) is multiple groups, and is the same as that of the pull-up steel wire ropes (14).

5. The transfer arm safety fall arrest device for a pull-up power catwalk according to claim 1, characterized in that: the trigger frame (42) is rotatably connected with a front roller (421) and a rear roller (422), and a gap exists between the front roller (421) and the rear roller (422).

6. The transfer arm safety fall arrest device for a pull-up power catwalk according to claim 1, characterized in that: an unlocking steel wire rope (6) is fixed at one end, far away from the trigger rod (45), of the trigger frame (42).

7. The transfer arm safety fall arrest device for a pull-up power catwalk according to claim 1, characterized in that: and a balancing weight (423) is fixed at one end of the trigger frame (42) far away from the trigger rod (45).

8. The transfer arm safety fall arrest device for a pull-up power catwalk according to claim 2, characterized in that: the device also comprises a safety device (7) arranged on the transfer arm (12) and a ratchet bar (8) arranged on the side wall of the V-shaped groove (12); the safety device (7) comprises a supporting block (71) connected to the transfer arm (12), a fixing plate (712) vertically fixed to one side, away from the V-shaped groove (11), of the supporting block (71), a fixing block (713) fixed to the fixing plate (712), a rotating shaft (72) rotatably connected with one end of the supporting block (713), a connecting plate (73) rotatably connected with the rotating shaft (72), a butting wheel (77) rotatably connected to one end, away from the supporting block (71), of the connecting plate (73), a clamping block (78) fixed to one end, away from the connecting plate (73), of the butting wheel (77), and an elastic element driving the connecting plate (73) to rotate towards the direction close to the V-shaped groove (11).

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